UV unwrap or geometry issue (cylindrical object)
The lid probably only needs a single UV seam on its lower inside edge.



Then you can arrange the UV's something like in the screenshot below: 


Your jar was almost 2 meters tall. Unless you have a special reason not to I would suggest that you always model to real world dimensions. In this casxe scaling it down to size ( s 0.1  giving a more realistic jar hight of 180mm) means you get 10 times the texel density on the finished model when using the same size texture.
(2K texture for such a model seems a bit excessive :) )

Also, you have way to many edge loops in the Wires. I would suggest removing as many as 4 out of 5 in the Low version.